Year	Index
1980	37.306
1981	40.422
1982	44.979
1983	47.305
1984	49.124
1985	52.764
1986	57.051
1987	62.115
1988	69.8
1989	72.997
1990	74.201
1991	76.135
1992	78.009
1993	79.424
1994	82.001
1995	83.972
1996	86.472
1997	88.052
1998	89.91
1999	91.262
2000	92.678
2001	94.054
2002	94.713
2003	93.801
2004	95.341
2005	99.593
2006	100
2007	103.739
2008	108.283
2009	110.219
2010	111.806
2011	113.147
2012	115.954
2013	114.303
2014	116.783
2015	119.623
2016	122.967
2017	122.857
2018	125.107
2019	126.988
2020	129.529
2021	132.122
2022	134.769
2023	137.469
2024	140.224